Matthias-Christian,
do you want a driver for the emulation modes (to be more generic), or
do you want to add a native Panasonic mode?
> Currently it's not clear for me how the driver has to handle fonts
> and what its responsibilities are (do I have to implement all
> functionality of the font class?).
No. I suggest to use the lj4 driver as a template. Within the
printer driver, all you have to support basically is switching to a
built-in font and selecting a glyph; this is done by the the
`set_char' member function. Almost everything else is optional.
The very question is how to generate the groff font files for your
device. Maybe Panasonic provides metrics files which you can convert
with a script into groff's format?
Werner
PS: If you are willing to assign the copyright of you driver to the
FSF, I would be glad to add your driver to groff.
